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| если смотреть (When observed along the axis from a distance of 20 to 40 feet…, the whole lens shall appear equally illuminated. I. Havkin) | |||
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when observed : 5 phrases, 4 sujets |
| Construction | 1 |
| Général | 1 |
| Mathématiques | 2 |
| Scientifique | 1 |
|
| |||
| если смотреть (When observed along the axis from a distance of 20 to 40 feet…, the whole lens shall appear equally illuminated. I. Havkin) | |||
|
when observed : 5 phrases, 4 sujets |
| Construction | 1 |
| Général | 1 |
| Mathématiques | 2 |
| Scientifique | 1 |